M, F., C, H., CG, S., ME, L., & T, P. (2013). Diagnostic value of the Friedman tongue position and Mallampati classification for obstructive sleep apnea: A meta-analysis. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 148(4), 540. https://doi.org/10.1177/0194599812473413
Chicago Style (17th ed.) CitationM, Friedman, Hamilton C, Samuelson CG, Lundgren ME, and Pott T. "Diagnostic Value of the Friedman Tongue Position and Mallampati Classification for Obstructive Sleep Apnea: A Meta-analysis." Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery 148, no. 4 (2013): 540. https://doi.org/10.1177/0194599812473413.
MLA (9th ed.) CitationM, Friedman, et al. "Diagnostic Value of the Friedman Tongue Position and Mallampati Classification for Obstructive Sleep Apnea: A Meta-analysis." Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery, vol. 148, no. 4, 2013, p. 540, https://doi.org/10.1177/0194599812473413.